From: Tom Gillespie <tgbugs@gmail.com>
To: gmauer@gmail.com
Cc: emacs-orgmode <emacs-orgmode@gnu.org>
Subject: Re: Can you automatically noweb include?
Date: Fri, 7 Aug 2020 21:47:12 -0700 [thread overview]
Message-ID: <CA+G3_PMJZkkO5TVt6oqQ-qVaQnBsOpzwEX6iaoDL9LPQ39h-9w@mail.gmail.com> (raw)
In-Reply-To: <CA+G3_POduZsF-0bx=tH1xFtkRr1ELzvChbz=p4DgQhZsBdMUvw@mail.gmail.com>
After a bit of investigation, it seems that wallyqs implementation of
ob-racket does not treat/manage :prologue arguments correctly, which
is worrying because I would assume that the semantics for how prologue
works should not be something that could be accidentally broken by
ob-* implementations (but that is a separate issue). More relevant to
this thread is that python the prologue works as others have reported,
but if you include a noweb reference in the prologue it does not get
expanded. It is quite possible that this should be considered a bug
since it means that prologues are added only after the main block is
expanded. This seems incorrect, and I suspect that it is another bug
related to the one fixed in df5a83637518ad9aa586d49884a6271f11afc592
(discussion here
https://orgmode.org/list/CA+G3_PNi3uMvBiWgBdKuC3C6VJt1T1j-RKH43LRqYbr+4NS8ZA@mail.gmail.com/).
The fact that prologue is not expanded means that you can modify what
code is run by putting it in a prologue and org mode will be none-the
wiser. The sha1 changes if you set :cache yes, which means that
something in the execution code is doing something different than in
the block hashing code. Further investigation required.
* Use the code
:PROPERTIES:
:header-args:python: :prologue "<<python-helper>>"
:END:
#+name: python-helper
#+begin_src python
asdf = lambda : 'result'
#+end_src
#+begin_src python :noweb yes
return asdf()
#+end_src
On Fri, Aug 7, 2020 at 9:20 PM Tom Gillespie <tgbugs@gmail.com> wrote:
>
> Hah, this is what I get for not reading carefully enough. I wonder if
> it is possible to stick <<racket-helper>> in the prologue and have it
> expand.
>
> On Fri, Aug 7, 2020 at 9:18 PM Tom Gillespie <tgbugs@gmail.com> wrote:
> >
> > I don't see a direct answer to the original question in the thread, so
> > here is an example of how I do it taken from
> > https://raw.githubusercontent.com/SciCrunch/sparc-curation/master/docs/developer-guide.org.
> > You can ctrl-f for racket-graph-helper to see the relevant blocks. A
> > reduced version is below. Recall that I use
> > https://github.com/wallyqs/ob-racket. I use this pattern all over the
> > place in my org blocks. Best,
> > Tom
> >
> > * Use the code
> > :cache yes"
> > #+begin_src racket :lang racket/base :noweb yes
> > <<racket-helper>>
> > (helper-function "this should work")
> > #+end_src
> >
> > #+RESULTS:
> > : this should work hello world
> >
> >
> > * Define the helpers
> > #+name: racket-helper
> > #+header: :prologue "#lang racket/base"
> > #+begin_src racket :lang racket/base
> > (define (helper-function arg)
> > (string-append arg " hello world"))
> > #+end_src
next prev parent reply other threads:[~2020-08-08 4:47 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-05 21:21 Can you automatically noweb include? George Mauer
2020-08-05 22:03 ` Ken Mankoff
2020-08-06 18:12 ` Ken Mankoff
2020-08-07 15:39 ` William McCoy
2020-08-07 16:51 ` Berry, Charles via General discussions about Org-mode.
2020-08-07 18:24 ` William McCoy
2020-08-07 21:18 ` Thomas S. Dye
2020-08-07 21:25 ` Berry, Charles via General discussions about Org-mode.
2020-08-07 22:01 ` William McCoy
2020-08-08 4:15 ` George Mauer
2020-08-08 4:18 ` Tom Gillespie
2020-08-08 4:20 ` Tom Gillespie
2020-08-08 4:47 ` Tom Gillespie [this message]
2020-08-08 19:42 ` George Mauer
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